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SUMMARY:IFIC Seminar: Black Holes & Dark Matter
DTSTART;VALUE=DATE-TIME:20220308T110000Z
DTEND;VALUE=DATE-TIME:20220308T120000Z
DTSTAMP;VALUE=DATE-TIME:20260429T095203Z
UID:indico-event-6547@indico.ific.uv.es
DESCRIPTION:The discovery of gravitational wave signals from merger events
  of massive binary-black-hole (BBH) systems have prompted a renewed debate
  in the scientific community about the interplay between Black Hole phenom
 enology and Dark Matter searches. On the one hand\, Black Holes of primord
 ial origin (PBHs) may have formed in the early Universe and could constitu
 te a significant portion of the elusive dark matter that\, according to st
 andard cosmology\, makes up the majority of the matter content in the univ
 erse. On the other hand\, peculiar classes of Black Holes can be studied a
 s “portals” to Dark Matter detection in the Gravitational Wave channel
 \, due to the large density of DM that is expected to be present around th
 em. In the first part of the talk\, I will review the most promising multi
 -messenger avenues towards detection of PBHs. I will first focus on the ra
 dio/X-ray band\, and present the prospects of discovery for both a hypothe
 tical PBH population and the guaranteed population of astrophysical isolat
 ed black holes in our Galaxy\, based on the broad-band emission from the i
 nterstellar gas that is being accreted onto them. Then\, I will turn my at
 tention to the gravitational wave domain\, and discuss the merger rate of 
 black-hole binaries. I will present a detailed evaluation of the expected 
 rate from a generic (subdominant) component of PBHs\, and analyze the role
  of future observation at high redshift to identify a primordial component
  on top of the rate associated to astrophysical BHs. In the final part of 
 my talk\, I will turn my attention to the impact of Dark Matter overdensit
 ies around Intermediate-Mass Black Holes\, and on their impact on the grav
 itational waveform emitted in presence of an Intermediate-Mass-Ratio inspi
 ral. I will demonstrate that the dephasing effect induced by the presence 
 of the DM is observable in this channel\, and the properties of the DM ove
 rdensity can be measured by the upcoming LISA observatory.\n\nhttps://indi
 co.ific.uv.es/event/6547/
LOCATION:IFIC Primera-1-1-1 - Paterna. Seminario
URL:https://indico.ific.uv.es/event/6547/
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